The Grudge Match 18-inch AR-15 6MM ARC Rifle Upper Build Kit from Davidson Defense offers a robust solution for precision shooting. Chambered in 6mm ARC, this upper features an 18-inch barrel made from 4150 Chrome Moly Vanadium steel, finished with a durable nitride coating for enhanced longevity. The barrel has a medium profile with a 1:7.5 twist rate, and a 5/8x24 thread pitch for compatibility with a variety of muzzle devices. Equipped with a mid-length gas system, this upper includes a 0.75-inch gas block for reliable cycling. The package comes with a GI Birdcage flash hider, a key component for performance. The handguard is crafted from lightweight 6061-T6 aluminum, finished in black, and follows an M-Lok style for accessory attachments. This kit is completed with the Davidson Defense "Panhead" Billet Upper Receiver, providing a sturdy foundation for custom builds. Ideal for gunsmiths who value creativity and freedom.
Caliber: 6mm ARC
Barrel Length: 18-inch
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Nitride
Barrel Profile: Medium
Barrel Twist Rate: 1:7.5T
Barrel Thread Pitch: 5/8x24
Gas System Length: Mid-Length
Gas Block Size: 0.75
Muzzle Device: AR-15/AR-10 .308 5/8x24 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 5/8x24
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Upper Receiver Name: Davidson Defense "Panhead" Billet Upper Receiver (NOFA)
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